Post-sintering heat-treatment

Zhao, R., Cheng, Y.B. (1996), Decomposition of Sm a-SiAlON phases during post sintering heat treatment , J. Eur. Ceram. Soc., 16, 1001. 

The Improvement in the Grain-Boundary Conduction by Post-sintering Heat Treatment... 

Prisching D, Pecina AH. Temperature behavior of ZnO varistors before and after post sintering heat treatment. Mater Let. 2000 43 295-302. DOI 10.1016/ S0167-577X(99)00277-3... 

Figure I (a, b and c) displays the microstructures of each SiC sample after chemical etching. By comparatively assessing each image, it is apparent that the supplementary post-sintering heat treatment has induced abnormal grain growth, the degrees of which are contingent on the length of the selected...

Extensive work has been reported on the deposition of individual cell layers and of full anode-electrolyte-cathode fuel cells on metallic interconnect substrates, much of it by VPS, with no sintering or other post-deposition heat treatments required [112]. However, so far relatively thick YSZ electrolytes, approximately 25 to 35 pm, have been needed to provide sufficient gas tightness [108, 114], so further optimization of the process is required to produce thinner, gas-tight electrolytes. Peak power densities of 300 mW/cm2 have been reported at 750°C for APS single cells [114], with four-cell stacks exhibiting power densities of approximately 200 mW/cm2 at 800°C [55],... 

Nuclear Applications. Powder metallurgy is used in the fabrication of fuel elements as well as control, shielding, moderator, and other components of nuclear-power reactors (63) (see Nuclearreactors). The materials for fuel, moderator, and control parts of a reactor are thermodynamically unstable if heated to melting temperatures. These same materials are stable under P/M process conditions. It is possible, for example, to incorporate uranium or ceramic compounds in a metallic matrix, or to produce parts that are similar in the size and shape desired without effecting drastic changes in either the stmcture or surface conditions. OnlyHttle post-sintering treatment is necessary. 

Agglomeration by the application of heat (sintering) is a technology that is used during the manufacture of one of the most important building materials, cement, and of others and for the post-treatment (finishing) of essentially all ceramics. 

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